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National Drinking Water Database


1,2-Dibromo-3-chloropropane (DBCP) in Delaware


1,2-Dibromo-3-chloropropane is a persistent pesticide and groundwater contaminant associated with male sterility and severe reproductive toxicity; historically used as a soil fumigant on bananas and pineapples; banned by EPA in early 1980s. [read more]

The Most Polluted Communities in Delaware

3 water utilities reported detecting 1,2-Dibromo-3-chloropropane (DBCP) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average 1,2-Dibromo-3-chloropropane (DBCP) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Millsboro Water Department
Millsboro, DE
2,3001 of 96< 0.01 ppb
(0 to 0.25 ppb)
2Grants Way
Dover, DE
2221 of 20< 0.01 ppb
(0 to 0.03 ppb)
3Artesian Water Company
Newark, DE
201,0001 of 134< 0.01 ppb
(0 to 0.17 ppb)

Health Based Limits for 1,2-Dibromo-3-chloropropane (DBCP)

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.<0.01 ppb
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.03 ppb
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.0.2 ppb
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.3 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.50 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.200 ppb

Violation Summary for 1,2-Dibromo-3-chloropropane (DBCP) in Delaware

There are no violations reported for this contaminant in Delaware